Water quality data in 2558 found that on average, Saen Saeb canal had dissolved oxygen in the water 1.9 which standards of water quality in general have dissolved oxygen about 5-8 ppm. As for waste water has dissolved oxygen less than 3 ppm, dissolved oxygen is important to indicate that the water has oxygen adequate for needs of living things or not. It can be seen that the water quality of Saen Saeb canal is less than 3 ppm, so the water in this canal is wastewater.